Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D286651 | Demonstrator for engine oil additive | — | 1986-11-11 |
| D286060 | Demonstrator for indicating the effect of additive in engine oil and the like | — | 1986-10-07 |
| D270073 | Demonstrator for indicating the effect of additive in engine oil and the like | — | 1983-08-09 |
| D262842 | Holder for towel or the like | — | 1982-02-02 |
| D254793 | Demonstrator for indicating the effect of additive in engine oil and the like | — | 1980-04-22 |